Release 0.16.3

Highlights

• Additional Storm API compatibility
• Several bug fixes

Release Notes

• Change EMPTY_STRING defn to be a plain string so that we are ok getting its references (#2446)
• Revert "Guard empty execution state. (#2447)" (#2448)
• Guard empty execution state. (#2447)
• Increase state manager reachability timeout. (#2395)
• Theoretical documentation for windowing (#2414)
• Updated architecture and design goals documentation (WIP) (#2387)
• Added Heron Instance related vars in cpp. This will be used by CPP Instance (#2442)
• Add helper methods in Config Helper Functions that will be used by CPP Instance (#2445)
• Do minor Metrics Cleanup (#2441)
• Log an error message when we dont recognize message type (#2440)
• C++ api bindings for Heron (#2429)
• bump version (#2439)
• Updated README.md (#2437)
• fixing join operator (#2436)
• adding BaseTickTupleAwareRichBolt for Storm compatibility (#2434)
• adding StormTopology compatibility (#2433)
• fix travis to use new targets and also some checkstyle (#2432)
• bump version (#2430)
• Add kubernetes deploy scripts for minikube. (#2426)
• Add apiserver.yaml and move bookkeeper.yaml for Kubernetes baremetal and VM deployments (#2418)
• fix heron submit examples (#2423)
• General Cleanup of DSL (#2420)
• Move examples to updated config system (#2425)
• allow users to set topology environment properties (#2416)
• update auroraheronshellcontroller (#2419)
• update restartcontainerresolver (#2415)
• fix spelling mistakes (#2413)
• Refactory kubernetes deploy yamls. (#2412)
• Add bookkeeper kubernetes yaml script. (#2390)
• update healthmgr (#2406)
• Add basic zookeeper yaml for kubernetes. (#2411)
• update aurora heron shell controller (#2410)
• Update Heron Topology API docs for Java (#2399)
• fixing SerializableGenerator (#2408)
• fixing flapMap signature (#2407)
• update metricscachemgr (#2401)
• Rename toSink to consume since thats more representative of what it ds (#2404)
• s/setDeliverySemantics/set_delivery_semantics (#2402)
• Fix code block and collapse behavior (website) (#2403)
• Heron Explorer documentation (#2227)
• Effectively-once semantics for the Heron API (#2367)
• Enhance Python DSL to bring it par with Java (#2391)
• Add fallback for proto type mismatch (#2397)
• Enable python checkstyle for heronpy files (#2393)
• Issue 2286: Implement bookkeeper based stateful storage (#2287)
• Log exception when scheduler fails to deploy config. (#2378)
• Modify local scheduler to work without a core uri. (#2376)
• Colorful dry-run output when we output to TTY device. (#2385)
• For topologies submitted with older jars, topologuy reliability mode (#2383)
• introduce sandbox config (#2373)
• remove remark about heron in beta (#2381)
• Be explicit about subprocess pipe's EOF. (#2380)
• Fix bazel 6.0 issues (#2379)
• Move zookeeper yaml to gcp. (#2377)
• Adding new metrics from Apache Storm (#2375)
• Make bazel updates for 6.0 (#2372)
• fix typo (#2374)
• fixing docker build script for heron (#2350)